{
  "abstract": "We study the relativistic transformation of temperature for effective cosmological fluids with negative pressure within a covariant thermodynamic framework. The Lorentz transformation of temperature is derived for barotropic fluids with $p=wρ$ and for the (generalized) Chaplygin gas with $p=-A/ρ^α$. For barotropic fluids with constant negative equation-of-state parameter, we show that negative pressure suppresses the growth of temperature under relativistic boosts. In contrast, the Chaplygin gas exhibits a qualitatively different behavior due to its density-dependent pressure, leading to a monotonic increase of the transformed temperature with velocity. The dependence of the relativistic temperature on the relative velocity and background energy density is illustrated through representative examples.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": "2609.03124",
  "author_total": 2,
  "authors": [
    {
      "name": "Soroor Pouryazdan"
    },
    {
      "name": "Babak Vakili"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/4jn9pj9hwee4a.bib",
  "cited_by": 0,
  "doi": "10.48550/arxiv.2609.03124",
  "fulltext_url": null,
  "id": "4jn9pj9hwee4a",
  "issns": [],
  "landing_url": "https://arxiv.org/abs/2609.03124",
  "language": null,
  "licence": "LicenseRef-arXiv-nonexclusive-1.0",
  "licence_label": "arXiv licence",
  "licence_source": "article",
  "licence_url": "http://arxiv.org/licenses/nonexclusive-distrib/1.0/",
  "metadata_licence": "CC0-1.0",
  "native_subjects": [
    [
      "arxiv",
      "cond-mat.stat-mech"
    ],
    [
      "arxiv",
      "gr-qc"
    ]
  ],
  "openalex": null,
  "pdf_url": "https://arxiv.org/pdf/2609.03124",
  "pmcid": null,
  "pmid": null,
  "published": "2026-09-02",
  "publisher": null,
  "ris": "https://research.draconitic.com/paper/4jn9pj9hwee4a.ris",
  "sources": [
    {
      "first_seen": "2026-10-30T12:18:31Z",
      "native_id": "2609.03124",
      "source": "arxiv",
      "url": "https://arxiv.org/abs/2609.03124"
    }
  ],
  "subjects": [
    {
      "field": "physics",
      "origin": "arxiv:gr-qc",
      "subfield": "gravitation"
    },
    {
      "field": "physics",
      "origin": "arxiv:cond-mat.stat-mech",
      "subfield": "statistical-nonlinear"
    }
  ],
  "title": "Relativistic transformation of temperature for exotic cosmological fluids",
  "title_text": "Relativistic transformation of temperature for exotic cosmological fluids",
  "type": "preprint",
  "updated_at": "2026-10-30T12:18:31Z",
  "url": "https://research.draconitic.com/paper/4jn9pj9hwee4a",
  "venue": "arXiv",
  "versions": []
}